Overedging-machine.



J. P. WEIS. OVEREDGING MACHINE.

APPLIGATION FILED muss, 190s.

Patented Feb. 27, 1912.

3 SHEETS-SHEET 1.

/N VENTOH fii/ 2 BY TTOHNEY J. P. WEIS.

OVEREDGING MACHINE. 7 APPLICATION FILED JUNE5 1903 7 1,018,797. Patented Feb. 27, 1912.

INVENTOH W/TNESSES:

uf ffwkf J. P. WEIS.

OVERBDGING MACHINE. APPLICATION FILED JUNE 5, 190a.

Patented Feb. 27,1912.

1 5N700 faji flwf.

BY M0551 WW1 W/TNESSEQ'Y TTNTT srarns rarnn'r ornrcn.

JOHN P. WEIS, 0F BROOKLYN, NEW YORK, ASSIGNOB, BY MESNE' ASSIGNMENTS, TO METROPOLITAN SEWING MACHINE COMPANY, A CORPORATION OF NEW YORK.

OVEREDGINGJVIACHINE.

Application filed June 5, 1903.

Specification of Letters Patent.

Patented Feb. 2'7, 1912.

Serial No. 160,209.

To all whom, it may concern Be it known that 1, JOHN P. Fi ms, a citizen of the United States, residing in Brooklyn, county of Kings, and State of New York, have invented a new and useful Iniprovement in Overedging-Machines, of which the following is a description.

' This invention relates to sewing machines of the chain-stitch type, and more particularly to machines of said type by which overedg'ing is performed.

An object of my invention is to provide an overedging machine capable of making an ornamental edging or finish for all kinds of material and particularly for work having unfinished or raw edges, the result being an artificial selvage.

Another object of this invention is to pro duce an overedging machine having few and simple parts. and one which is capable of having the movements of certain of its elements varied and properly adjusted.

Other objects will appear throughout the course of this description.

The invention consists in the parts, features and combinations hereinafter described and claimed.

In the drawings: Figure 1 is a front elevation of as much of a sewing machine as is deemed necessary to illustrate the application of my invention; Fig. 2 is a top plan of a portion of the looper and spreader and their immediate actuating and supporting parts; Fig. 3 is a top plan of the spreader support; Fig. 4t is a front elevation of the parts shown in Fig. 3; Fig. 5 is a vertical section on the line 5 5 of-Fig. 3; Figs. 6, 7, 8 and 9 are views illustrating, diagrammatically the manner in which the several threads are manipulated according to this invention; Fig. 10 is a face view of a portion of the work showing the character of edge or selvag'e applied thereto in accord ance with this invention; Fig. 11. is a bottom view of said work; and Figs. 12, 18, 14,

15 and 16 are diagrammatic views illustrating the relative movements of the looper and spreader.

The different portions of the frame of the machine are indicated by l, and the bedplate by 2. The shaft is indicated by 3, having on its outer end the usual hand-wheel and driving pulley. An eccentric a, adjacent the driving pulley actuates a strap 5, pivotally connected to the needle-bar operating lever 6, the latter being pivoted at 7, to the frame and connected at its forward end by link 8, and collar 9, to the needle-bar 10.

The lever 6, has the depending arm 11, pivotally connected to the looper actuating rod 12, the front end of which is pivotally connected to the looper-carrier 13, in a socket in the upper end of which is suitably clamped the looper 14:. The carrier 13,.is suitably fixed at its lower end, to the rock-shaft 15, supported by bearings 16, on the bedplate. Said shaft 15, is caused to rock in its bearings by the mechanism ust described, and is given a longitudinal reciprocation in its hearing by means of the eccentric 17, carried by the driving shaft 3, near its forward end and which is surrounded by the strap 18, loosely connected at its rear end to a link 19, which at one end is connected to a guide-rod 20, which slides in the bearing 21, fixed to the bed-plate. The other end of the link 19, is loosely connected at 22, to the rock shaft 15, thus enabling said rock shaftto rock relatively to the bar 19, and yet receive a longitudinal reciprocation therefrom. Thus the looper is given four motions, viz., a forward loop-taking movement back of the needle, a sidewise movement toward the front of the machine after reaching its forward extreme, then a backward movement in front of the needle, and then a movement toward the rear of the machine after reaching its rearward extreme. These movements are secured by the proper timing of the eccentrics 4 and 17.

The spreader 23, is suitably clamped in a socket in the forward end of the carrier 24-,

the latter being pivotally supported by means of links 25, embracing said carrier at their upper ends, and at their lower ends embracing, and being pivotally supported on, the car 26, on the upper end of a swivel rod 27, extending into an adjustable bracket 28, and being suitably retained in the said bracket by means of the head 29, which rests upon the top of the bracket, and the nut 30, which screws upon the small extension 31, at the bottom of the swivel rod 27. The swivel rod is also centrally bored and screwthreaded for the reception of a screw 82, which enters the bore, and whose enlarged head holds the nut 30, after the same has been set. The nut 30, is situated in a depression in the bottom of the bracket 28. The bottom of the bracket 28, is provided with the extensions 33, the underside of which is beveled, as shown at 34, and through said extensions are tapped screws 35, for the purpose of adjusting the position of the bracket, relatively to its supporting standard by impinging against the latter, see Fig. 5; The standard 36, is provided with the vertical walls 37, having therebetween the channel 38, in which the extensions 33, of the bracket 28, are confined to operate. Said bracket 28, is pivoted to the walls 37, of the standard, by means of the conical end journal screws 39, by which means said bracket is enabled to pivot, or swing, or tilt upon the standard, and which latter is secured to the bed-plate of the machine by means of the screws 40, tapped through the former and extending into the latter. This construction provides a means by which the angle of the spreader, relatively to the looper, may be correctly and quickly adjusted. It also provides a compact structure for the support of the spreader mechanism, and its application to the ordinary chain of double-chain-stitch sewing machine.

The looper and the spreader are provided with the usual thread eyes for leading in and out their respective threads.

The movements of the spreader are obtained directly from the looper actuating rod, the same being imparted by means of the universal-joint, the latter comprising the sleeve 11, clamped adjustably upon the looper rod 12, by means of the screw l2, tapped through said sleeve into engagement with said rod. Beneath the rod the sleeve is transversely bored, and in the bore is set and held adjustably, by means of the screw 43, the stem 44, carrying on its outer end the ball 45, operating freely in a socket piece 16, suitably secured to the rear end of the spreader-carrier 22. Ordinarily, the socket piece 46, is connected adjustably to the screw-threaded extension of the spreadercarrier 22; and the ball 15, is ordinarily journaled between socket screws which engage opposite sides thereof. These latter features have not been shown in detail in the drawings as they form no part of the invention in this case, but are made the subject matter of my patent granted April 25, 1911, No. 990,410.

From the several features of the construction last above described it will be seen that the four motions imparted to the looper are directly and positively transmitted to the spreader, saidfour motions of the looper being developed, however, into different movements in the spreader. That is to say, the spreader has longitudinal reciprocations coupled with vertical reciprocations and let eral vibrations, the resultant of these three movements being substantially an elliptical movement in a plane vertically and horizontally oblique to the path of the feed, which latter is in a horizontal plane across the cloth plate. This elliptical movement, imparted to the spreader, in the manner stated, carries the point of the latter from below the cloth-plate up and over the edge thereof from a point in rear and on the right of the needle, to a point in advance and on the left of the needle. The swivel support for the spreader-carrier in its standard 36, permits this compound movement of the spreader. Hence, it will be seen that, in this machine, the looper is given four motions and the spreader six motions; that both the looper and the spreader carry a thread; that the looper takes a loop directly from the needle and carries it back in front and to one side thereof; that the spreader takes this needle loop and carries it up over the edge of the work, and on its backward movement drops said needle loop without its being concatenated with the needle thread on the face of the work. And it will also be seen that, by making the universal joint connection between the spreader carrier 22 and looper actuating rod 12, adjustable as described, the movement of the point of the spreader, from below the work over the edge thereof, can be made more or less abrupt or precipitous, thus avoiding the necessity for a very large opening or passage through the clotlrplate and enabling the spreader to perform its thread lifting function as quickly as may be desired. This is a desirable feature in this class of machines and the functions emanating therefrom are quite important from the standpoint of the product and the'manipulation of the work.

The operation of themechanism above described will now be clear and it therefore only remains to describe the manner in which the titch, or edging, or selvage, shown in Flgs. 10 and 11, is produced.

The machine is provided with the usual throat-plate having a tongue pointing in the direction of the feed and over the side of which tongue the overedge threads are carried and from which tongue the loops slip as the stitching progresses. This throatplate has not been shown in the drawings in its details of construction as the same is of the construction usual in overedge stitching machines; but, in order to disclose the plane thereof and the manner in which the spreader passes thereover and cooperates therewith, I have shown a portion thereof in section in Fig. 1, the same being indicated by 2 The material, or work, is indicated at 50, the needle-thread at 51, the looper-thread at 52 and'the spreader-thread at 53.

Starting with the presumption that several stitches have been made as shown in Figs. 6 to 9; that the fabric has been fed; that the needle is above the work-plate and ready to descend; that the looper is in its extreme forward position with a needle loop on its shank near its rear end, with the looper-thread extending through said needle loop; and that the spreader is at its fen ward extreme over the cloth-plate and has thereon a loop of the needle thread which has been lifted and carried by it over the edge of the work, but having slid back on the spreader to the right of the pat-h of the needle, by contact of the strands of the said loop with the edge of the work and the usual tongue on the throatplate, the spreader thread extending through said loop on the front of the spreader, passing through the eye of the spreader, and backwardly through the said loop and into a previously formed stitch which has been set.

This position of the needle, spreader and looper, is shown in Fig. 6. The needle will now descend and in so doing the point of the needle will pass between the body of the spreader and the strand of its thread, extending along its back, and carrying its own thread, in loop form, down through the loop of spreader thread and through the work. Simultaneously with the descent of the needle, the spreader moves downwardly and backwardly and the looper moves backwardly. The loop of needle thread on the body of the spreader slips toward the point of the lat ter, and the loop of needle thread on the body of the looper slips toward the point of the latter. Simultaneously with its backward movement the looper moves sidewise toward the front of the machine, thus caus ing the needle in passing below the clothplate to descend in rear of the looper. As the looper reaches its backward extreme the loop of needle thread carried thereby slips under the hook (a, of the looper, the strand of the loop on the front of the looper being turned downwardly under the said hook, thus giving the twist to the needle loop illustrated in Fig. 7, of the drawings. At this moment the needle loop carried by the spreader slips from the point thereof and has the spreader thread passing therethrough, which latter is also around the body of the needle. The rear strand of the needleloop slides over the point I), of the looper. The looper now moves sidewise toward the rear of the machine in the direction of the spreader and the latter moves toward the looper, thus bringing the point of the spreader close to the side of the looper and in position to slightly depress the rear strand of the needle loop, held by the looper, and the strand of the looper thread which passes through the said loop, the point of the spreader being thus in posit-ion to engage the front strand of said loop to subsequently carry the latter up over the edge of the work. The spreader thread extends freely to the work, passing through a previous needle loop, thence around the body of the needle and back throughsaid previous needle loop as shown in Fig. 8. The needle now begins to move upwardly and throw out its loop, the looper begins to move forwardly to engage this new loop on the nee dle and in so doing gives up the loop carried on its hook at, and the spreader moves forwardly and upwardly engaging the front strand of needle loop now being given up by the looper and carries the same up over the edge of the work. This condition is shown in Fig. 9. The needle continues to rise, the looper continues to move forward, and the spreader continues to move forwardly and upwardly until the said ele ments again reach the position of Fig. 6, with the loops of thread disposed as previously described in connection with said ure. 7 From this description of the manipulation of the several threads it will be seen that the needle thread, on the surface of the work, lies in a straight line of stitching a, and on the bottom of the work extends to the edge in the form of a loop with a double twist 0 there engaging with the spreader thread which latter extends over the surface of the work at c, and is engaged by the straight stitches c. The looper thread is zigzagged on the bottom of the work at f, passing around the two strands of one loop at a needle puncture, then encircling the strand of a previously formed loop on the bottom of the work, and passing from thence to and around the two strands of a succeeding loop of needle thread at the needle puncture as before.

Having thus described my invention what I claim and desire to secure by Letters Pat cut is:

1. An overedging machine having in combination, a reciprocating thread-carrying needle; a thread-carrying looper cooperating with the needle; a thread-carrying spreader cooperating with the needle and looper; and mechanism for actuating the needle, looper and spreader, including means for imparting a plurality of movements to the spreader, whereby the latter takes a loop of needle-thread from the looper and carries it across the edge of the work and passes its own thread through said loop and aroundthe needle-thread above the work.

2. An overedging machine having in combination, a reciprocating thread-carrying needle; a thread-carrying looper cooperating with the needle; a spreader, cooperating with the needle and looper; mechanism for actuating the needle, looper and spreader, including means for imparting a die-thread loop and carry the latter across the edge of the work in twisted form to cover the edge thereof.

3. An overedging machine comprising a thread-carrying reciprocating needle; a thread-carrying looper confined to operate below the cloth-plate of the machine; means for actuating the needle and looper whereby the latter will take from the needle a loop of thread; athread-carryii'ig spreader; and means for actuating the latter whereby it has imparted to it substantially all elliptical movement-the major axis of which is inclined to the path of reciprocation of the needle, so that it will engage a strand of the needle-thread loop held by the looper, carry the same across the edge of the work, and place a loop of its own thread in said needleloop and in the path of the needle.

4. An overedging machine comprising a tl'iread-carrying reciprocating needle, a thread-carrying looper cooperating with the needle for taking a loop therefrom, a thread carrying spreader cooperating with the looper for taking the needle'loop therefrom and twisting the same around the looperthread, and mechanism for actuating the several parts to secure the said functions and for causing the spreader to lay the needle-loop over the edge of the work.

5. An oi'eredging machine comprising a vertically reciprocating needle; a threadcarrying looper cooperating with the needle, and a thread-carrying spreader cooperating with the needle and looper; means for actuating the looper to pass its thread through the needle-loop and to momentarily hold said loop and means for actuating the spreader whereby the same may have imparted thereto a movement from below the work in rear of the needle at a point on its right up and over the work to in front of the needle at a point on its left to carry the needle-thread over the edge of the work and place its own thread through the needle-loop and in position for cooperation with the needle.

6. An overedging machine comprising a Vertically reciprocating needle; a threadcarrying looper cooperating with the needle to take a loop therefrom; a thread-carrying spreader for cooperating with the looper; means for actuating the needle and looper; and means for actuating the spreader whereby the same may have imparted thereto a movement from in rear of the needle, at a point on its right, to in front of the needle,

at a point on its left, to engage and carry the needle-loop from the looper, twist it about the looper-thread, carry it over the edge of the work and place a loop of its own thread in the path of the needle.

7. An overedging machine comprising a vertically reciprocating needle; a threadcarrying looper operating entirely below the work and cooperating with the needle to take a loop therefrom; a thread-carrying spreader for cooperating with the looper; means for actuating the needle and looper; and means for actuating the spreader to cause the same to lift the needle-loop from the looper, twist it about the looper-thread, and carry it over the edge ofthe work, and to cause the spreader to present a loop of its own thread over the work for the passage of the needle.

8. An overedging machine comprising a vertically reciprocating needle; a looper having a loop-entering point and a loop'-re taining hook; means for actuating'the needle and looper to cause the latter to enter a needle-loop and retain the sameon its 1100 r; a thread-carrying spreader; and means for actuating the latter-to cause it to take the needle-loop from the looper, twist said loop and carry the same over the work, and to pass into and retain said loop while presenting a loop of its own thread for the passage of the needle.

9. An overedging machine comprising a reciprocating needle; a thread-carrying looper confined to operate below the clothplate of the machine, take a loop from the needle and momentarily retaiirtlie same; means for actuating the needle and looper; a tl'n'eadrarrying spreader; and means for actuating the same to cause it to take the needle-loop from the looper, twist it about the looper-thread, lay it on the edge of the work, pass through said loop and momentarily retain the same, and present a loop of its own thread to the needle.

10. An overedging machine comprising a reciprocating needle; a reciprocating looper; and a reciprocating spreader; means for actuating the looper and spreader, involving a universal joint connection between the looper and the spreader, whereby the latter may have relatively different movements.

11, An overedging machine comprising a reciprocating needle, a reciprocating looper, and a spreader, means for actuating the looper, and means for giving to the spreader longitudinal movement and vertical movement, and means whereby the angle of the path of movement of the spreader relatively to the vertical may be varied.

12. An overedging machine comprising a needle, a looper and a spreader, means for actuating the same, an adjustable bracket, and a swivel support for the spreader in said bracket.

13. An overedging machine comprising a needle, a looper and a spreader, means for actuating the looper to take a loop from the needle, means for pivotally supporting the spreader, a bracket, and a swivel connection between the bracket and pivotal support.

1%. An overedging machine comprising a needle, a looper, and a spreader, means for actuating the same, a support for the spreader, a standard to which the support is pivotally secured, and means for adjusting the support.

15. A machine for overedging comprising stitch-forming mechanism v including a spreader; means for actuating the spreader forcarrying a loop across the edge of the work; a swivel support for the spreader; and means for adjusting said support transversely of the length of the spreader.

16. In a sewing machine, a spreader, a carrier therefor, a bracket supporting the carrier, a pivotal support for the bracket, and means for adjusting the bracket.

17. In a sewing machine, astandard suitably secured to the bedplate of the machine, a bracket adjustable relatively to the standard, a spreader-carrier swiveled to the bracket, and a spreader supported by the carrier.

18. In combination, a standard having means whereby it may be secured to a sewing machine; a support carried by the standard; a spreader-carrier swiveled to said sup port; and a spreader connected to said carmen 19. In combination, a standard having means whereby it may be secured to a sewing machine; a support carried by the standard; means for adjusting the support relatively to the standard, a spreader carrier connected to the support; and a spreader connected to said carrier.

20. In combination, a standard having means whereby it may be secured to a sew ing machine; a spreader-carrier; a plurality of means operating at an angle to each other between the carrier and standard and cooperating to permit the carrier to have both pivotal and swivel action on the standard; a spreader connected to said carrier; and means for actuating the carrier.

21. In combination, a standard having means whereby it may be secured to a sewing machine; a support pivotally secured to the standard; a spreader-carrier connected to the support; means for adjusting the support relatively to the standard; and a spreader connected to said carrier.

22- An overedging machine comprising a reciprocating needle, a looper, a spreader, and mechanism for actuating the needle, looper and spreader to cause the same to cooperate so that the looper will take a loop from the needle and the spreader will take and manipulate said needle-loop so as to lay the same on the bottom surface and over the edge of the work in the form of a double twisted loop.

An overedging machine comprising a reciprocating needle, a looper, a thread-carrying spreader, and mechanism for actuating the needle, looper and spreader to cause the same to cooperate so that the looper will take a loop from the needle and the spreader will take and manipulate said needle-loop so as to lay the same on the bottom surface and over the edge of the work in the form of a double twisted loop, and a loop of the spreader-thread will be laid on the top surface of the work and be retained by a succceding loop of the needle-thread.

24. An overedging machine comprising a reciprocating needle, a threadcarrying looper, a thread-carrying spreader, and mechanism for actuating the needle, looper and spreader to cause the same to co'o'perate so that the looper will take a loop from the needle and the spreader will take and manipulate said needle-loop so as to lay the same on the bottom surface and over the edge of the work in the form of a double twisted loop, and the looper-thread will be concatenated with the twisted loop of needlethread on the bottom surface of the work.

In testimony whereof I have hereunto signed my name in the presence of two subscribing witnesses.

JOHN P. IVEIS.

Witnesses CHAS. Mo. CHAPMAN, M. B. Home.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. C. 

